feat: replace engine fork with indexer-provider

Author: rvagg

go.mod

@@ -40,7 +40,6 @@ require (
 	github.com/filecoin-project/go-cbor-util v0.0.1 // indirect
 	github.com/filecoin-project/go-data-transfer/v2 v2.0.0-rc7 // indirect
 	github.com/filecoin-project/go-ds-versioning v0.1.2 // indirect
-	github.com/filecoin-project/go-state-types v0.10.0 // indirect
 	github.com/filecoin-project/go-statemachine v1.0.2 // indirect
 	github.com/filecoin-project/go-statestore v0.2.0 // indirect
 	github.com/flynn/noise v1.0.0 // indirect
@@ -60,7 +59,7 @@ require (
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/hannahhoward/cbor-gen-for v0.0.0-20230214144701-5d17c9d5243c // indirect
-	github.com/hannahhoward/go-pubsub v1.0.0 // indirect
+	github.com/hannahhoward/go-pubsub v0.0.0-20200423002714-8d62886cc36e // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect